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Finding the Fourth Proportional to 15,263.55, 21,063.08 and 8,549.07

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Solution

The fourth proportional to 15,263.55, 21,063.08 and 8,549.07 is: 11,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,263.55 : 21,063.08 = 8,549.07 : x
  2. Step 2: Convert to fraction form
    15,263.55/21,063.08 = 8,549.07/x
  3. Step 3: Cross multiply
    15,263.55x = 21,063.08 × 8,549.07
  4. Step 4: Simplify right side
    15,263.55x = 180,069,702.59
  5. Step 5: Solve for x
    x = 180,069,702.59/15,263.55
  6. Step 6: Final answer
    x = 11,797.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.